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PUBLIC HEALTH SERVICES <br /> ]Ot'NT't' <br /> ,SAN 10AQ1,,'1N <br /> J0(11 KHANN,k NQ)-\1 P 14 <br /> Health Offt'ccr <br /> P. 1601 East Hazelton Avrnuc) 0 Stockton,CAUbmia 9520 1 j 641 <br /> (209)468-3400 <br /> P <br /> 'UM HILLL PS PETROD L COMPANY <br /> P 0 BOX 1666 MAR 17 199�/ <br /> BARTLESVILLE OK 74003 <br /> RE'. Stockton Airport REFER TO SITE CODE: 1845 <br /> 5000 S. Airport Way <br /> Stockton, CA 95206 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD) has recently reviewed the analytical results <br /> of the soil samples taken from beneath the underground storage <br /> as that were removed from this site from 1987-1990. <br /> Current standards, laboratory detection limits, and/or your site <br /> specific characteristics (i.e. depth to seasonal high <br /> groundwater, nearby wells, septic systems) make it Impossible for <br /> PHS/Eto evaluate your site for closure. <br /> If site closure certification is necessary, PHS/EHD would not be <br /> able to provide it without further site investigation. As listed <br /> below, 14 underground storage tank removal sites require further <br /> remediation according to the Leaking Underground Fuel Tank (LUFT) <br /> field manual. <br /> Tanks #11 #21 #30 #4t #5, and #6 <br /> Six - 25,000 gallon fuel tanks removed February 15, 1990 <br /> to February 28, 1990, removed from the Airport Tank Farm <br /> next to Aero Nastalgia Hanger on Dixon Road. Xylene levels <br /> in this pit were as high as 400 ppm. Total petroleum <br /> hydrocarbon (TPH) levels were as bigh as 2300 ppm. <br /> Tanks #8, #91 #10, #11, and #12 <br /> Five - 25,000 gallon fuel tanks removed February 22, 1988 <br /> to February 26, 1988, removed from the Airport Tank Farm <br /> on Dixon Road. Toluene levels in this pit were as high as <br /> 1100 ppm. TPH levels were as high as 2700 ppm. <br /> Tanks #21t #22 and #23 <br /> Three - 550 gallon tanks removed on March 8, 1990 from the <br /> Airport Tank Farm. Xylene levels in this pit were as high <br /> 'N%W1 as 350 ppm. TPH levels were as high as 13,000 ppm. <br /> A OMSk)n V1 SOn PMQUIn OXIMY W-Atth C30C SCMC" <br />